双飞的英文：
n. dual instruction
- "And now, in the Eighth-month, yellowing butterflies Hover, two by two, in our west-garden grasses"
八月蝴蝶来,双飞西园草。
adj. 双的；双重的
n. 双数；双数词
- His dual role as composer and conductor.
他兼作曲家及指挥的双重身分。 - Dual-color fruit coffee
双色水果咖啡 - Dual moisture detection probes to eliminate false alarms
双重防潮保护的探针能够避免警报失灵或误报 - This dual tug is apparent in the whole movement of expatriation
这种两面周旋的态度在整个寄居海外运动中极为明显。 - Dual to the bad weather, I did not test.
由于坏天气，我没有测得结果。